KANSAS CITY (AP) - The mother of a Kansas City girl known for years as "Precious Doe" pleaded guilty to second-degree murder in the death of the 3-year-old. Michelle Johnson, of Muskogee, Oklahoma, also pleaded guilty to child endangerment, abandoning a corpse and tampering with evidence. Those charges involved not helping the child as she lay dying after being abused by the girl's stepfather. Prosecutors say Johnson didn't seek help for young Erica Michelle Marie Green, who was dying after being kicked by her stepfather in a Kansas City home. Prosecutors say she agreed to testify against her husband, who is charged with first-degree murder. They plan to seek the death penalty for him. Prosecutors will recommend that Michelle Johnson serve a total of 25 years.